US Bridges

Parkville RD over Ash Creek

Fair

Shasta County, California · 3.4 MI S Dersch RD · Structure no. 06C0220

Built
1958
67 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
49 ft
2 main spans
Daily traffic
130
2013 count
Owner
County
County Highway Agency

About this bridge

Parkville RD over Ash Creek is a wood or timber stringer/multi-beam or girder carrying Parkville RD over Ash Creek in Shasta County, California. It was built in 1958, so it is 67 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 130 vehicles a day, roughly 3% of them trucks, projected to reach 408 by 2045. The structure is 49 ft (14.9 m) long and 18 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesParkville RD
CrossesAsh Creek
Location3.4 MI S Dersch RD
RouteCounty Highway 0
Coordinates40.43664, -122.19197
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating27.4 US tons
Inventory rating19.6 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadUnknown
Structure length49 ft (14.9 m)
Longest span24 ft (7.2 m)
Deck width18 ft (5.5 m)
Roadway width17 ft (5.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic130 (2013)
Projected traffic408 by 2045
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Parkville RD over Ash Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is Parkville RD over Ash Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2024.

How much traffic does Parkville RD over Ash Creek carry?

About 130 vehicles per day (2013 count), of which roughly 3% are trucks.

How long is Parkville RD over Ash Creek?

The structure is 49 ft (14.9 m) long with a longest span of 24 ft (7.2 m) and a deck 18 ft wide.

Who owns Parkville RD over Ash Creek?

It is owned by the County Highway Agency.